Calculus with Applications (10th Edition)

Published by Pearson
ISBN 10: 0321749006
ISBN 13: 978-0-32174-900-0

Chapter 11 - Probability and Calculus - 11.3 Special Probability Density Functions - 11.3 Exercises - Page 597: 11



Work Step by Step

The proportion is $10\%$, which means the corresponding area is $0.1$ The z-table gives the result from looking up 1.2 in the left column and 0.08 in the top row. The intersection is $1.28$ Therefore, the area to the left is $z=-1.28$
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